Rockwell Automation 1791ES-IB16 Guard I/O EtherNet/IP Safety Modules - Manual (Page 60)

60 Rockwell Automation Publication 1791ES-UM001D-EN-P - May 2013
Chapter 5 Configure the I/O Modules by Using the Logix Designer Application
Work with the Input
Configuration Dialog See the table that shows typical safety input parameters, referring to Chapter 2
for related information.
Table 6 - Typical Safety Input Parameters
Parameter Name Value Description
Input Point Operation Type Single Channel Inputs are treated as single channel.
Dual-channel Equivalent Inputs are treated as a dual-channel pair. The channels must match (be equal) within the discrepancy
time or a fault is generated.
Dual-channel Complementary Inputs are treated as a dual-channel pair. The channels must disagree (be opposite) within the
discrepancy time or a fault is generated.
Input Point Mode Not Used The input is disabled. It remains logic 0 if 24V is applied to the input terminal.
Safety Test Pulse Pulse testing is performed on this input circuit. A test source on the 1791ES module must be used as
the 24V source for this circuit. The test source is configured by using the test source pulldown. The
pulse test will detect shorts to 24V and channel-to-channel shorts to other inputs.
Safety A safety input is connected but there is no requirement for the 1791ES module to perform a pulse test
on this circuit. An example is a safety device that performs its own pulse tests on the input wires, such
as a light curtain.
Standard A standard device, such as a reset switch, is connected. This point cannot be used in dual channel
operation.
Safety Input Test Source None If pulse testing is being performed on an input point, then the test source that is sourcing the 24V for
the input circuit must be selected.
If the incorrect test source is entered, the result is pulse test failures on that input circuit.
Test Output 0
Test Output 1
Test Output 2
Test Output 3
Test Output 4…15
(1)
Input Delay Time
Off -> On 0…126 ms (in increments of
6 ms) Filter time is for OFF to ON transition. Input must be high after input delay has elapsed before it is set
logic 1.
Input Delay Time
On -> Off 0…126 ms (in increments of
6 ms) Filter time is ON to OFF transition. Input must be low after input delay has elapsed before it is set logic
0.
Safety Input Error Latch Time 0…65,530 ms (in increments
of 10 ms) Default is 1000 ms. The purpose for latching input errors is to make sure that intermittent faults that
can only exist for a few milliseconds are latched long enough to be read by the controller. The amount
of time to latch the error must be based on the RPI, the safety task watchdog, and other application-
specific variables.
(1) There are eight test outputs on 1791ES-IB8XOBV4 modules.